Digital signatures are the primary mechanism for achieving the cryptographic goal of nonrepudiation. In this video, Mike Chapple explains how to use asymmetric cryptography to create digital signatures.
- [Instructor] Digital signatures provide … an electronic counterpart to physical signatures. … Digital signatures use asymmetric cryptography … to achieve the goals of integrity, authentication … and nonrepudiation. … When the recipient of a digitally signed message verifies … that message's signature, he or she knows three things. … First, that the person owning the public key … used to sign the message is actually the person … who created the message, that's authentication. … Second, that the message was not altered after … it was digitally signed by the creator, that's integrity. … And finally, that the sender could prove these facts … to a third party if necessary, that's nonrepudiation. … The use of digital signatures depends upon … two important concepts discussed earlier in this course. … First, that hash functions are collision-resistant. … For a strong hash function, you can't find … two inputs that produce the same output. … Second, that anything encrypted with one key … from an asymmetric key pair, may only be decrypted …
- Block storage types
- Cloud storage security threats
- Encryption basics
- Choosing encryption algorithms
- Key management
- Public key infrastructure (PKI)
- Creating and revoking digital signatures
- Securing common protocols
- Data protection
- Information management
- Information rights management
- Logging security events
- Continuous security monitoring
Skill Level Intermediate
CompTIA Cloud+ (CV0-002) Cert Prep: 2 Securitywith Joseph Holbrook1h 31m Intermediate
1. Cloud Data Storage
3. Key Management
4. Public Key Infrastructure
5. Cryptographic Applications
6. Data Protection
7. Information Management
8. Data Event Auditability
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